Waltee c



' (No Model.)

W..G. MUNSO-N.

SLIDE CENTER REGISTER FOR HOT AIR.

Patented Aug. 1, 18 82...

illliTrmunguj R O T N E V N I WITNESSES:

@%QKMZ@5M ATTORNEY.

UNITED STATES PATENT OFFICE.

WALTER G. MUNSON, OF BROOKLYN, NEW YORK.

SLIDE-CENTER REGISTER FOR HOT AIR.

- SPECIFICATION forming part of Letters Patent No. 261,946, dated August 1, 1882.

Application filed March 11, 1882. (No model.)

To all whom it may concern Be it known that I, WALTER O. MUNSON, a citizen of the United States, residing at Brooklyn, in the county of Kings and State of New York, have invented certain new and useful Improvements in Slide-Center Registers for Hot Air, of which the following is a specification, reference being had therein to the accompanying drawings.

My invention consists ofa central set-spring with thrust action, and bearing below upon the connecting-rod and above bearing against a center plate for the purpose of holding the valves in any desired position, either open or shut or at any point part way open.

In the accompanying drawings, Figure 1 is a top view of a hot-air register with my improvements. Fig.2 is a vertical central section on the line 00 m, Fig. 1. Fig, 3 is a detached view of the spring and parts connected therewith. i

In the construction of my improved register the frame A, valves B, and face-plate C may be ofany suitable construction. Under the face-plate is a central slide, D, with the setspring E pressing upward against said slide. The base of this spring rests on the connecting-rod F, which, by the friction of plates D and 0 caused by the upward thrust of spring E, looks or holds the valves under the thrustaction of the spring. The connecting-rod F, which supports spring E and friction-plate D, moves with them across the register as the valves are opened and shut, forming a sliding center support.

I am aware that hot-air registers have been constructed in which the valves were connected by means of a rod and in which a spring was used to retain them in thedesired position. 1 therefore do not claim such construction, broadly.

What I claim, and desire to secure by Letters Patent, is-- In a hot-air register, the vertical setspring E and sliding friction-plate D, in combination with the connecting-rod F, valves B, and frameplate 0, as shown and described.

In testimony whereof I affix my signature in presence of two witnesses.

WALTER'G. MUNSON.

Witnesses:

DANIEL BREED, Gno. W. KIRK. 

